featgqrgsr featgqrgsr

15-06-2017
Biology

contestada

What is a controlled experiment?

A. An experiment that has no responding variables
B. An experiment with a control group and an experimental group
C. An experiment with no dependent variables
D. An experiment that is performed inside

Respuesta :

monkeyboyga38 monkeyboyga38

15-06-2017

b because you need a controlled group

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